When I loaded the terrain data from local nginx server, the earth will display a black area

CesiumJS
1

When I loaded the terrain data from local nginx server, the earth will display a black area，just like image below。

When I remove the terrain, there is no such problem。

I tryed version 108 and 95。
Will reproduce the problem

WechatIMG51
WechatIMG511679×771 73 KB

2

looks like some of the geometry/texture data are not properly loaded, will you check the browser’s network panel?

3

thanks all， I find the answer.
When I transfer data to terrain, I can select trangle algorithm，I change the algorithm, the problem seems solved!
thanks again!